Implications of HERA results for very high energy cosmic ray physics
Abstract
Experimental results obtained with the HERA collider and recent progress in their theoretical interpretation are reviewed. After a short introduction to HERA physics, deep inelastic scattering and photoproduction are discussed as (virtual) photon-proton scattering. It is shown that the measurement and theoretical understanding of both photoproduction as well as low-x deep inelastic scattering are essential for obtaining reliable high energy extrapolations within hadron-hadron interaction models. Limitations of the predictive power of hadron interaction models due to the interplay of perturbative QCD and unitarity effects are discussed.
Keywords
Cite
@article{arxiv.astro-ph/9811225,
title = {Implications of HERA results for very high energy cosmic ray physics},
author = {Ralph Engel},
journal= {arXiv preprint arXiv:astro-ph/9811225},
year = {2009}
}
Comments
LaTeX, 10 pages and 16 figures, invited talk at the Xth Int. Symposium on Very High Energy Cosmic Ray Interactions, Gran Sasso, July 12-17, 1998